com.google.android.exoplayer2.video.spherical

Class Projection

java.lang.Object

com.google.android.exoplayer2.video.spherical.Projection

public final class Projection
extends java.lang.Object

The projection mesh used with 360/VR videos.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	Projection.DrawMode Enforces allowed (sub) mesh draw modes.
static class	Projection.Mesh A Mesh associated with the projection scene.
static class	Projection.SubMesh The sub mesh associated with the Projection.Mesh.

Field Summary

Fields

Modifier and Type	Field and Description
static int	DRAW_MODE_TRIANGLES Triangle draw mode.
static int	DRAW_MODE_TRIANGLES_FAN Triangle fan draw mode.
static int	DRAW_MODE_TRIANGLES_STRIP Triangle strip draw mode.
Projection.Mesh	leftMesh The Mesh corresponding to the left eye.
static int	POSITION_COORDS_PER_VERTEX Number of texture coordinates per vertex.
Projection.Mesh	rightMesh The Mesh corresponding to the right eye.
boolean	singleMesh Whether the left and right mesh are identical.
int	stereoMode The stereo mode.
static int	TEXTURE_COORDS_PER_VERTEX Number of position coordinates per vertex.

Constructor Summary

Constructors

Constructor and Description
Projection(Projection.Mesh mesh, int stereoMode) Creates a Projection with single mesh.
Projection(Projection.Mesh leftMesh, Projection.Mesh rightMesh, int stereoMode) Creates a Projection with dual mesh.

Method Summary

Modifier and Type	Method and Description
static Projection	createEquirectangular(float radius, int latitudes, int longitudes, float verticalFovDegrees, float horizontalFovDegrees, int stereoMode) Generates an equirectangular projection.
static Projection	createEquirectangular(int stereoMode) Generates a complete sphere equirectangular projection.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DRAW_MODE_TRIANGLES

public static final int DRAW_MODE_TRIANGLES

Triangle draw mode.

See Also:

Constant Field Values

DRAW_MODE_TRIANGLES_STRIP

public static final int DRAW_MODE_TRIANGLES_STRIP

Triangle strip draw mode.

See Also:

Constant Field Values

DRAW_MODE_TRIANGLES_FAN

public static final int DRAW_MODE_TRIANGLES_FAN

Triangle fan draw mode.

See Also:

Constant Field Values

TEXTURE_COORDS_PER_VERTEX

public static final int TEXTURE_COORDS_PER_VERTEX

Number of position coordinates per vertex.

See Also:

Constant Field Values

POSITION_COORDS_PER_VERTEX

public static final int POSITION_COORDS_PER_VERTEX

Number of texture coordinates per vertex.

See Also:

Constant Field Values

leftMesh

public final Projection.Mesh leftMesh

The Mesh corresponding to the left eye.

rightMesh

public final Projection.Mesh rightMesh

The Mesh corresponding to the right eye. If singleMesh is true then this mesh is identical to leftMesh.

stereoMode

@C.StereoMode
public final int stereoMode

The stereo mode.

singleMesh

public final boolean singleMesh

Whether the left and right mesh are identical.

Constructor Detail

Projection

public Projection(Projection.Mesh mesh,
                  int stereoMode)

Creates a Projection with single mesh.

Parameters:

mesh - the Mesh for both eyes.

stereoMode - A C.StereoMode value.

Projection

public Projection(Projection.Mesh leftMesh,
                  Projection.Mesh rightMesh,
                  int stereoMode)

Creates a Projection with dual mesh. Use Projection(Mesh, int) if there is single mesh for both eyes.

Parameters:

leftMesh - the Mesh corresponding to the left eye.

rightMesh - the Mesh corresponding to the right eye.

stereoMode - A C.StereoMode value.

Method Detail

createEquirectangular

public static Projection createEquirectangular(@C.StereoMode
                                               int stereoMode)

Generates a complete sphere equirectangular projection.

Parameters:

stereoMode - A C.StereoMode value.

createEquirectangular

public static Projection createEquirectangular(float radius,
                                               int latitudes,
                                               int longitudes,
                                               float verticalFovDegrees,
                                               float horizontalFovDegrees,
                                               @C.StereoMode
                                               int stereoMode)

Generates an equirectangular projection.

Parameters:

radius - Size of the sphere. Must be > 0.

latitudes - Number of rows that make up the sphere. Must be >= 1.

longitudes - Number of columns that make up the sphere. Must be >= 1.

verticalFovDegrees - Total latitudinal degrees that are covered by the sphere. Must be in (0, 180].

horizontalFovDegrees - Total longitudinal degrees that are covered by the sphere.Must be in (0, 360].

stereoMode - A C.StereoMode value.

Returns:

an equirectangular projection.